23 struct request *blk_queue_find_tag(struct request_queue *q, int tag)  in blk_queue_find_tag()  argument
25 	return blk_map_queue_find_tag(q->queue_tags, tag);  in blk_queue_find_tag()
61 void __blk_queue_free_tags(struct request_queue *q)  in __blk_queue_free_tags()  argument
63 	struct blk_queue_tag *bqt = q->queue_tags;  in __blk_queue_free_tags()
70 	q->queue_tags = NULL;  in __blk_queue_free_tags()
71 	queue_flag_clear_unlocked(QUEUE_FLAG_QUEUED, q);  in __blk_queue_free_tags()
82 void blk_queue_free_tags(struct request_queue *q)  in blk_queue_free_tags()  argument
84 	queue_flag_clear_unlocked(QUEUE_FLAG_QUEUED, q);  in blk_queue_free_tags()
89 init_tag_map(struct request_queue *q, struct blk_queue_tag *tags, int depth)  in init_tag_map()  argument
95 	if (q && depth > q->nr_requests * 2) {  in init_tag_map()
96 		depth = q->nr_requests * 2;  in init_tag_map()
121 static struct blk_queue_tag *__blk_queue_init_tags(struct request_queue *q,  in __blk_queue_init_tags()  argument
130 	if (init_tag_map(q, tags, depth))  in __blk_queue_init_tags()
163 int blk_queue_init_tags(struct request_queue *q, int depth,  in blk_queue_init_tags()  argument
168 	BUG_ON(tags && q->queue_tags && tags != q->queue_tags);  in blk_queue_init_tags()
170 	if (!tags && !q->queue_tags) {  in blk_queue_init_tags()
171 		tags = __blk_queue_init_tags(q, depth, alloc_policy);  in blk_queue_init_tags()
176 	} else if (q->queue_tags) {  in blk_queue_init_tags()
177 		rc = blk_queue_resize_tags(q, depth);  in blk_queue_init_tags()
180 		queue_flag_set(QUEUE_FLAG_QUEUED, q);  in blk_queue_init_tags()
188 	q->queue_tags = tags;  in blk_queue_init_tags()
189 	queue_flag_set_unlocked(QUEUE_FLAG_QUEUED, q);  in blk_queue_init_tags()
190 	INIT_LIST_HEAD(&q->tag_busy_list);  in blk_queue_init_tags()
203 int blk_queue_resize_tags(struct request_queue *q, int new_depth)  in blk_queue_resize_tags()  argument
205 	struct blk_queue_tag *bqt = q->queue_tags;  in blk_queue_resize_tags()
238 	if (init_tag_map(q, bqt, new_depth))  in blk_queue_resize_tags()
265 void blk_queue_end_tag(struct request_queue *q, struct request *rq)  in blk_queue_end_tag()  argument
267 	struct blk_queue_tag *bqt = q->queue_tags;  in blk_queue_end_tag()
313 int blk_queue_start_tag(struct request_queue *q, struct request *rq)  in blk_queue_start_tag()  argument
315 	struct blk_queue_tag *bqt = q->queue_tags;  in blk_queue_start_tag()
346 		if (q->in_flight[BLK_RW_ASYNC] > max_depth)  in blk_queue_start_tag()
378 	list_add(&rq->queuelist, &q->tag_busy_list);  in blk_queue_start_tag()
395 void blk_queue_invalidate_tags(struct request_queue *q)  in blk_queue_invalidate_tags()  argument
399 	list_for_each_safe(tmp, n, &q->tag_busy_list)  in blk_queue_invalidate_tags()
400 		blk_requeue_request(q, list_entry_rq(tmp));  in blk_queue_invalidate_tags()